Lower the garage to have additional living space on top ?
I guess it would depend on the existing ceiling height of the garage. I notice some garages are like 12'+ ceiling and some are like 8'. The lower the ceiling I assume it would mean the deeper they need to dig down to get the ceiling height for the living space above the new garage, and I assume there is limit how much we can dig down. Otherwise, cars will have difficulty getting down to the slope from the driveway.